"Anytime Environment Canada issues a tornado watch, it should be taken seriously. But fortunately, with cold core funnels they rarely touch down. Now, on rare occasions they can, and when they do touch down, any unsecured objects can blow around and cause minor damage -- and usually they're very brief. But the whole storm is not rotating, so these are not able to generate the power we see with supercell thunderstorms where we can see more longer track systems, stronger winds and more potential for damage."